!Hierarch:

Very well. Based on the trust we have for you, brother, I'll give you a mission. Use these five crystals of binding to break open the seals that have been placed throughout this region. Watch the altar carefully; you'll discover how to use these crystals. I'll wait here until you break all the seals and return.

First, you must go to the altar near the entrance of the Valley of Saints. Your mission begins there. Good luck!